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HIV functional impairment

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https://www.readbyqxmd.com/read/28512628/dysplasia-of-granulocytes-in-a-patient-with-hpv-disease-recurrent-infections-and-b-lymphopenia-a-novel-variant-of-whim-syndrome
#1
Giusella M F Moscato, Erica Giacobbi, Lucia Anemona, Silvia Di Cesare, Gigliola Di Matteo, Massimo Andreoni, Alessandro Mauriello, Viviana Moschese
WHIM syndrome is a condition in which affected persons have chronic peripheral neutropenia, lymphopenia, abnormal susceptibility to human papilloma virus infection, and myelokathexis. Myelokathexis refers to the retention of mature neutrophils in the bone marrow (BM), which accounts for degenerative changes and hypersegmentation. Most patients present heterozygous autosomal dominant mutations of the gene encoding CXCR4. Consequently, aberrant CXCL12/CXCR4 signaling impairs the receptor downregulation causing hyperactivation (gain-of-function) that affects BM homing for myelopoiesis and lymphopoiesis and the release of neutrophils in the bloodstream...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28505204/compartment-specific-distribution-of-human-intestinal-innate-lymphoid-cells-is-altered-in-hiv-patients-under-effective-therapy
#2
Benjamin Krämer, Felix Goeser, Philipp Lutz, Andreas Glässner, Christoph Boesecke, Carolynne Schwarze-Zander, Dominik Kaczmarek, Hans Dieter Nischalke, Vittorio Branchi, Steffen Manekeller, Robert Hüneburg, Tobias van Bremen, Tobias Weismüller, Christian P Strassburg, Jürgen K Rockstroh, Ulrich Spengler, Jacob Nattermann
Innate lymphocyte cells (ILCs), a novel family of innate immune cells are considered to function as key orchestrators of immune defences at mucosal surfaces and to be crucial for maintaining an intact intestinal barrier. Accordingly, first data suggest depletion of ILCs to be involved in human immunodeficiency virus (HIV)-associated damage of the intestinal mucosa and subsequent microbial translocation. However, although ILCs are preferentially localized at mucosal surfaces, only little is known regarding distribution and function of ILCs in the human gastrointestinal tract...
May 15, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28504307/family-based-promotion-of-mental-health-in-children-affected-by-hiv-a-pilot-randomized-controlled-trial
#3
Theresa S Betancourt, Lauren C Ng, Catherine M Kirk, Robert T Brennan, William R Beardslee, Sara Stulac, Christine Mushashi, Estella Nduwimana, Sylvere Mukunzi, Beatha Nyirandagijimana, Godfrey Kalisa, Cyamatare F Rwabukwisi, Vincent Sezibera
BACKGROUND: Children affected by HIV are at risk for poor mental health. We conducted a pilot randomized controlled trial (RCT) of the Family Strengthening Intervention (FSI-HIV), a family home-visiting intervention to promote mental health and improve parent-child relationships in families with caregivers living with HIV, hypothesizing that child and family outcomes would be superior to usual care social work services. METHODS: Eighty two families (N = 170 children, 48...
May 15, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28503143/impairments-of-motor-function-while-multitasking-in-hiv
#4
Sharif I Kronemer, Jordan A Mandel, Ned C Sacktor, Cherie L Marvel
Human immunodeficiency virus (HIV) became a treatable illness with the introduction of combination antiretroviral therapy (CART). As a result, patients with regular access to CART are expected to live decades with HIV. Long-term HIV infection presents unique challenges, including neurocognitive impairments defined by three major stages of HIV-associated neurocognitive disorders (HAND). The current investigation aimed to study cognitive and motor impairments in HIV using a novel multitasking paradigm. Unlike current standard measures of cognitive and motor performance in HIV, multitasking increases real-world validity by mimicking the dual motor and cognitive demands that are part of daily professional and personal settings (e...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28498164/functional-status-and-physical-impairments-of-adult-patients-infected-with-the-human-immunodeficiency-virus-admitted-to-hospital-a-scoping-review-protocol
#5
Ronel Roos, Heleen van Aswegen, Witness Mudzi
The objectives of this scoping review are to describe the physical impairments and subsequent level of function of adult individuals infected with the human immunodeficiency virus (HIV) admitted to an acute care hospital, determine the outcome measures used by rehabilitation professionals when evaluating said impairments and level of function in the population of interest, and identify the rehabilitation interventions offered to individuals while in hospital as a means of addressing these physical impairments and individuals' functional status...
May 2017: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/28495611/hiv-1-tat-protein-enhances-sensitization-to-methamphetamine-by-affecting-dopaminergic-function
#6
James P Kesby, Julia A Najera, Benedetto Romoli, Yiding Fang, Liana Basova, Amanda Birmingham, Maria Cecilia G Marcondes, Davide Dulcis, Svetlana Semenova
Methamphetamine abuse is common among humans with immunodeficiency virus (HIV). The HIV-1 regulatory protein TAT induces dysfunction of mesolimbic dopaminergic systems which may result in impaired reward processes and contribute to methamphetamine abuse. These studies investigated the impact of TAT expression on methamphetamine-induced locomotor sensitization, underlying changes in dopamine function and adenosine receptors in mesolimbic brain areas and neuroinflammation (microgliosis). Transgenic mice with doxycycline-induced TAT protein expression in the brain were tested for locomotor activity in response to repeated methamphetamine injections and methamphetamine challenge after a 7-day abstinence period...
May 8, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28493473/dysregulation-of-mitochondrial-bioenergetics-and-quality-control-by-hiv-1-tat-in-cardiomyocytes
#7
Farzaneh G Tahrir, Santhanam Shanmughapriya, Taha Mohseni Ahooyi, Tijana Knezevic, Manish K Gupta, Christopher D Kontos, Joseph M McClung, Muniswamy Madesh, Jennifer Gordon, Arthur M Feldman, Joseph Y Cheung, Kamel Khalili
Cardiovascular disease remains a leading cause of morbidity and mortality in HIV positive patients, even in those whose viral loads are well controlled with antiretroviral therapy. However, the underlying molecular events responsible for the development of cardiac disease in the setting of HIV remain unknown. The HIV encoded Tat protein plays a critical role in the activation of HIV gene expression and profoundly impacts homeostasis in both HIV infected cells and uninfected cells that have taken up released Tat via a bystander effect...
May 11, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28484464/altered-natural-killer-cell-function-in-hiv-exposed-uninfected-infants
#8
Christiana Smith, Emilie Jalbert, Volia de Almeida, Jennifer Canniff, Laurel L Lenz, Marisa M Mussi-Pinhata, Rachel A Cohen, Qilu Yu, Fabiana R Amaral, Jorge Pinto, Jorge O Alarcon, George Siberry, Adriana Weinberg
OBJECTIVES: HIV-exposed uninfected (HEU) infants have higher rates of severe and fatal infections compared with HIV-unexposed (HUU) infants, likely due to immune perturbations. We hypothesized that alterations in natural killer (NK) cell activity might occur in HEU infants and predispose them to severe infections. DESIGN: Case-control study using cryopreserved peripheral blood mononuclear cells (PBMCs) at birth and 6 months from HEU infants enrolled from 2002 to 2009 and HUU infants enrolled from 2011 to 2013...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28478706/interest-in-use-of-mhealth-technology-in-hiv-prevention-and-associated-factors-among-high-risk-drug-users-enrolled-in-methadone-maintenance-program
#9
Roman Shrestha, Pramila Karki, Michael Copenhaver
The adoption of mobile technologies for health (mHealth) in healthcare has grown considerably in recent years, but systematic assessment of interest in the use of mHealth in HIV prevention efforts among people who use drugs (PWUD) is lacking. We therefore examined interest in use of mHealth technology in HIV prevention and associated individual-level factors among high-risk PWUD enrolled in methadone maintenance program. A total of 400 HIV-negative PWUD, who reported drug- and/or sex-related risk behaviors completed a standardized assessment using audio computer assisted self-interview (ACASI)...
May 8, 2017: AIDS Care
https://www.readbyqxmd.com/read/28473642/selective-vulnerability-of-striatal-d2-versus-d1-dopamine-receptor-expressing-medium-spiny-neurons-in-hiv-1-tat-transgenic-male-mice
#10
Christina J Schier, William D Marks, Jason J Paris, Aaron J Barbour, Virginia D McLane, William F Maragos, A Rory McQuiston, Pamela E Knapp, Kurt F Hauser
Despite marked regional differences in HIV susceptibility within the CNS, there has been surprisingly little exploration into the differential vulnerability among neuron types and the circuits they underlie. The dorsal striatum is especially susceptible, harboring high viral loads and displaying marked neuropathology-with motor impairment a frequent manifestation of chronic infection; yet, little is known about the response of individual striatal neuron types to HIV or how this disrupts function. Consequently, we examined the morphological, electrophysiological, and anxiety-like and exploratory/locomotor behavioral effects of HIV-1 Tat in dopamine subtype 1 (D1) and dopamine subtype 2 (D2) receptor-expressing striatal medium spiny neurons (MSNs) by breeding transgenic Tat-expressing mice to Drd1a-tdTomato- or Drd2-eGFP- reporter mice...
May 4, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28471944/geriatric-syndromes-new-frontiers-in-hiv-and-sarcopenia
#11
Kellie L Hawkins, Todd T Brown, Joseph B Margolick, Kristine M Erlandson
: HIV infection, in many circumstances, can now be managed as a chronic disease due to the marked increase in life expectancy since the introduction of combination antiretroviral therapy (ART). As the patients who first had access to combination ART age into their 50s and 60s, the effects of chronic HIV infection on health have become an important research focus in HIV infection. People living with HIV appear to exhibit an earlier occurrence of some aging-related conditions compared to people without HIV, in part due to higher rates of comorbidities, high-risk behaviors (e...
June 1, 2017: AIDS
https://www.readbyqxmd.com/read/28470583/interaction-effects-between-hiv-and-aging-on-selective-neurocognitive-impairment
#12
Yingying Ding, Haijiang Lin, Weiwei Shen, Qionghai Wu, Meiyang Gao, Na He
HIV infection and aging are each associated with neurocognitive impairment (NCI). This study examined the combined effects of HIV infection and aging on NCI. We performed a cross-sectional survey among 345 HIV-infected and 345 HIV-uninfected participants aged at least 40 years. The International HIV Dementia Scale (IHDS) and Chinese version of Mini-mental State Examination (MMSE) were administered to screen for NCI. HIV-infected individuals had higher prevalence of NCI than uninfected individuals (46.7% vs 15...
May 3, 2017: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
https://www.readbyqxmd.com/read/28467726/hiv-patient-systemic-mitochondrial-respiration-improves-with-exercise
#13
Morgan Kocher, Mindy McDermott, Rachel Lindsey, Cecilia Shikuma, Mariana Gerschenson, Dominic Chow, Lindsay Kohorn, Ronald K Hetzler, Iris Kimura
INTRODUCTION: In HIV-infected individuals, impaired mitochondrial function may contribute to cardio-metabolic disease as well as to fatigue and frailty. Aerobic exercise improves total body energy reserves; however its impact at the cellular level is unknown. We assessed alterations in cellular bioenergetics in peripheral blood mononuclear cells (PBMC) before and after a 12 week aerobic exercise study in sedentary HIV-infected subjects on stable antiretroviral therapy (ART) who successfully completed a 12 week aerobic exercise program...
May 3, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28465448/elevated-interferon-%C3%AE-induced-protein-10-and-its-receptor-cxcr3-impair-nk-cell-function-during-hiv-infection
#14
Zhuo Wang, Tong Wu, Meichen Ma, Zining Zhang, Yajing Fu, Jing Liu, Junjie Xu, Haibo Ding, Xiaoxu Han, Zhenxing Chu, Yuntao Wu, Hong Shang, Yongjun Jiang
As the first line of defense in the human immune system, NK cells play essential roles in prevention of tumorigenesis and viral infection. It is known that NK cells have impaired function in HIV infection; however, it remains unclear why this occurs. IP-10 is a chemokine and inflammatory factor that is associated with such diseases as tuberculosis, hepatitis B virus, and pancreatic cancer. The aim of this study was to evaluate IP-10 levels and CXCR3 expression in NK cells that were affected by HIV and to elucidate whether NK cell function could be affected by IP-10...
May 2, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28458492/prevalence-of-hiv-associated-neurocognitive-deficit-among-hiv-positive-people-in-ethiopia-a-cross-sectional-study-at-ayder-referral-hospital
#15
Tilahun Belete, Girmaw Medfu, Ephrem Yemiyamrew
BACKGROUND: HIV associated neurocognitive deficit impairs motor activity, neuropsychiatric functioning, daily activity and work activity usually due to the immune suppression effect of the virus. Sub-Saharan region including Ethiopia is the region with the highest burden of HIV. However, a few studies are found on this aspect nationally. This study was aimed at determining the prevalence and the factors associated with cognitive impairment among HIV positive people in Ethiopia who attended Ayder Comprehensive Specialized Hospital...
January 2017: Ethiopian Journal of Health Sciences
https://www.readbyqxmd.com/read/28455216/impairment-of-the-type-i-interferon-response-by-hiv-1-potential-targets-for-hiv-eradication
#16
REVIEW
Teslin S Sandstrom, Nischal Ranganath, Jonathan B Angel
By interfering with the type I interferon (IFN1) response, human immunodeficiency virus 1 (HIV-1) can circumvent host antiviral signalling and establish persistent viral reservoirs. HIV-1-mediated defects in the IFN pathway are numerous, and include the impairment of protein receptors involved in pathogen detection, downstream signalling cascades required for IFN1 upregulation, and expression or function of key IFN1-inducible, antiviral proteins. Despite this, the activation of IFN1-inducible, antiviral proteins has been shown to facilitate the killing of latently HIV-infected cells in vitro...
April 24, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28450854/microbial-disease-spectrum-linked-to-a-novel-il-12r%C3%AE-1-n-terminal-signal-peptide-stop-gain-homozygous-mutation-with-paradoxical-receptor-cell-surface-expression
#17
Thais Louvain de Souza, Regina C de Souza Campos Fernandes, Juliana Azevedo da Silva, Vladimir Gomes Alves Júnior, Adelia Gomes Coelho, Afonso C Souza Faria, Nabia M Moreira Salomão Simão, João T Souto Filho, Caroline Deswarte, Stéphanie Boisson-Dupuis, Dara Torgerson, Jean-Laurent Casanova, Jacinta Bustamante, Enrique Medina-Acosta
Patients with Mendelian Susceptibility to Mycobacterial Diseases (MSMD) exhibit variable vulnerability to infections by mycobacteria and other intramacrophagic bacteria (e.g., Salmonella and Klebsiella) and fungi (e.g., Histoplasma, Candida, Paracoccidioides, Coccidioides, and Cryptococcus). The hallmark of MSMD is the inherited impaired production of interferon gamma (IFN-γ) or the lack of response to it. Mutations in the interleukin (IL)-12 receptor subunit beta 1 (IL12RB1) gene accounts for 38% of cases of MSMD...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28447399/genome-wide-association-study-of-hiv-associated-neurocognitive-disorder-hand-a-charter-group-study
#18
Peilin Jia, Zhongming Zhao, Todd Hulgan, William S Bush, David C Samuels, Cinnamon S Bloss, Robert K Heaton, Ronald J Ellis, Nicholas Schork, Christina M Marra, Ann C Collier, David B Clifford, Benjamin B Gelman, Ned Sacktor, Susan Morgello, David M Simpson, J Allen McCutchan, Jill S Barnholtz-Sloan, Donald R Franklin, Debralee Rosario, Scott L Letendre, Igor Grant, Asha R Kallianpur
HIV-associated neurocognitive disorder (HAND) often complicates HIV infection despite combination antiretroviral therapy (ART) and may be influenced by host genomics. We performed a genome-wide association study (GWAS) of HAND in 1,050 CNS HIV Anti-Retroviral Therapy Effects Research (CHARTER) Study participants. All participants underwent standardized, comprehensive neurocognitive, and neuromedical assessments to determine if they had cognitive impairment as assessed by the Global Deficit Score (GDS), and individuals with comorbidities that could confound diagnosis of HAND were excluded...
June 2017: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
https://www.readbyqxmd.com/read/28447329/immune-response-against-salmonella-enteritidis-is-unsettled-by-hiv-infection
#19
Maira Costa Cacemiro, Milena Sobral Espíndola, Leonardo Judson Galvão-Lima, Luana Silva Soares, Caroline Fontanari, Marco Aurélio Prata, Fábio Campioni, Juliana Pfrimer Falcão, Valdes Roberto Bollela, Fabiani Gai Frantz
The human immunodeficiency virus (HIV) is responsible for more than 2 million new infections per year and opportunistic infections such as Salmonella spp. Gastroenteritis is an important cause of mortality and morbidity in developing countries. Monocytes and macrophages play a critical role in the innate immune response against bacterial infections. However during HIV infection the virus can infect these cells and although they are more resistant to the cytopathic effects, they represent an important viral reservoir in these patients...
April 27, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28442186/the-acceptability-and-potential-utility-of-cognitive-training-to-improve-working-memory-in-persons-living-with-hiv-a-preliminary-randomized-trial
#20
Sheri L Towe, Puja Patel, Christina S Meade
HIV-associated neurocognitive impairments that impact daily function persist in the era of effective antiretroviral therapy. Cognitive training, a promising low-cost intervention, has been shown to improve neurocognitive functioning in some clinical populations. We tested the feasibility, acceptability, and preliminary effects of computerized cognitive training to improve working memory in persons living with HIV infection (PLWH) and working memory impairment. In this randomized clinical trial, we assigned 21 adult PLWH to either an experimental cognitive training intervention or an attention-matched control training intervention...
March 30, 2017: Journal of the Association of Nurses in AIDS Care: JANAC
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